Sterrocladia F.Schmitz, 1893

Holotype species: Sterrocladia amnica (Montagne) F.Schmitz

Original publication and holotype designation: Schmitz, F. (1893). Die Gattung Actinococcus Kütz. Flora 77: 367-418, 5 figs, pl. VII.

Description: thalli pseudoparenchymatous, cylindrical, pseudodichotomously branched, with main axes and branches of similar size; apices rounded and mucronated with a prominent apical cell or acute; uniaxial construction in cross section, axial cell surrounded by one layer of large medullary cells and 1–3 layers of cortical cells; medulla compact and adherent or loosely aggregated and non-adherent to the outer cortex in cross section; axial cells, in one row, cylindrical to ellipsoidal in longitudinal section, surrounded by medullary and cortical cells; cortical cells small, irregularly shaped, polygonal and densely arranged in surface view; reproductive structures in nemathecia, forming wart-like protuberances on the thallus surface; nemathecia composed of short, branched filaments, producing terminal sporangia.

Information contributed by: Necchi & Vis (2021: 87). The most recent alteration to this page was made on 2022-04-12 by M.D. Guiry.

Taxonomic status: This name is of an entity that is currently accepted taxonomically.

Gender: This genus name is currently treated as feminine.

Most recent taxonomic treatment adopted: Skuja, H. (1944). Untersuchungen über die Rhodophyceen des Süsswassers (VII-XII). Acta Horti Bot. Univ. Lat. 14: 3-64.

Comments: Carpogonial branches, cystocarps and tetrasporangia are unknown. Placement of the genus is thus highly tentative. The type species, S. amnica, from French Guiana and Guyana (South America) and S. belizeana, from Belize (North America), are rarely reported in these regions (Necchi 2016).

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Contributors
Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera, organised in the 1990s by Dr Bruce Parker on behalf of the Phycological Society of America (PSA) and intended to be published in CD format. These AlgaeBase descriptions are now being continually updated, and each current contributor is identified above. The PSA and AlgaeBase warmly acknowledge the generosity of all past and present contributors and particularly the work of Dr Parker.

Descriptions of chrysophyte genera were subsequently published in J. Kristiansen & H.R. Preisig (eds.). 2001. Encyclopedia of Chrysophyte Genera. Bibliotheca Phycologica 110: 1-260.

Linking to this page: https://www.algaebase.org/search/genus/detail/?genus_id=42783

Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 12 April 2022. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 24 April 2024